摘要： 1982～1987年间自黑龙江、北京等10个省市采集到60份西瓜病株,分别进行分离和培养鉴定,结果有尖孢镰刀菌、茄病镰刀菌、木贼镰刀菌。致病性试验是将3个镰刀菌分别接种于西瓜品种郑州3号,结果尖孢镰刀菌致病,茄病镰刀菌和木贼镰刀菌不侵染。分别从黄瓜和甜瓜枯萎病株分离出来的尖孢镰刀菌,与西瓜病株分离得的尖孢镰刀菌进行交互接种于西瓜、甜瓜和黄瓜的幼苗上。鉴定的结果是不同的专化型,即尖孢镰刀菌西瓜专化型〔Fusarium oxysporum. f. sp. niveum(E. F. Smith)Snyder et. Hans.〕。在防治上,采用综合防治措施,经过1989～1990年试验,防效达90.91%～92.70%,增产58.95%～64.93%。
关键词:
西瓜枯萎病,
尖孢镰刀菌西瓜专化型,
综合防治
Abstract: Sixty collections of watermelon plant parts affected by wilt diseases were obtained from ten provinces (cities),i. c. Heilong Jiang, Beijing, etc. The isolations and cultures showed that these specimens belonged to species of Fusar him oxysponm Schlecht, F. solani (Mart. ) Sacc. and F, equiseti (Corda) Sacc. Pathogenicity tests were carried out by inoculating these species separately to seedlings of watermelon, varieties. The results showed that F. oxysporum could cause severe infection to the sec-dings, while the other two could cause no infection. Cross inoculation, tests using the F. oxysporum isolated from cucumber, muskmelon and watermelon were conducted on the seedlings.lt is concluded that the watermelon isolate belongs to F. oxysporum f. sp. niveum (E.F.Smith) Snyder et Hans. During 1989-1990, integrated control of watermelon wilt was carried out. The effects were significant(90.91%- 92.70%) with high yield increases (58.93%-64.93%)
Key words:
Niveum fusarium Wilt,
Fusctrium oxysporum f,
sp,
Integrated control.
黄仲生, 杨玉茹, 朱晓丹, 王志清, 耿本聪. 西瓜枯萎病菌专化型鉴定及防治研究[J]. 华北农学报, 1992, 7(4): 117-122. doi: 10.3321/j.issn:1000-7091.1992.04.021.
Huang Zhongsheng, Yang Yuru, Zhu Xiaodan, Wang Zhiqing, Geng Bencong. Studies on Niveum fusarium Wilt Forma Specialis and Its Control[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1992, 7(4): 117-122. doi: 10.3321/j.issn:1000-7091.1992.04.021.